ATTRACTION AND REPULSION. 



93 



CHAPTER XII. 



ELECTRIC ATTRACTION AND REPULSION (SO CALLED) 

 ARE RESULTANT MOVEMENTS. 



FT is found experimentally that electric currents 

 transmitted through electrodes in similar di- 

 rections, produce reciprocal movements toward 

 each other ; and from each other, when trans- 

 mitted in opposite directions. 



Fig. 1 8 represents two parallel conducting wires, 

 A B, supported on the 

 prongs c D E F, and 

 counterpoised by the 

 weights b b; so as to 

 swing toward and from 

 each other freely as pen- 

 dulums. Arrangements 

 of connecting wires are 

 made to transmit cur- 

 rents through them at 

 pleasure, in similar and 

 in opposite directions., 

 The currents moving Fig. is. 



along the adjacent wires in similar directions, by a 

 process of induction, change the vibrations between 



